Chinese Journal of Quantum Electronics, Volume. 26, Issue 1, 56(2009)

Assisted cloning of a class of unknown three-qubit GHZ state

Kui HOU*, Jing WANG, Hao YUAN, and Shou-hua SHI
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    A protocol for probabilistic cloning of a class of three-qubit Greenberger-Horne-Zeilinger (GHZ) state and its orthogonal complement state by using three maximally two states as the qua山1m channel is proposed. In this protocol, Bob (the state 町ceiver) can 町ceive the unknown state via usual teleportation process. With the assistance of Victor (the state preparer) , Alice(the state sender) can produce the perfect copies and complement copies of an unknown state. A protocol for the teleportation is given by using non-maximally entangled states as quantum channel, and the clones and complement clones of unknown state also can be obtained by Alice with assistance offered by the state preparer.

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    HOU Kui, WANG Jing, YUAN Hao, SHI Shou-hua. Assisted cloning of a class of unknown three-qubit GHZ state[J]. Chinese Journal of Quantum Electronics, 2009, 26(1): 56

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    Paper Information

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    Received: Jan. 25, 2008

    Accepted: --

    Published Online: May. 24, 2010

    The Author Email: Kui HOU (hkahdx@yahoo.com.cn)

    DOI:

    CSTR:32186.14.

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